Citação norma APA

USA Department of State. (1990). Foreign relations of the United States: 1955/57,21 East Asian security; Cambodia; Laos. Foreign relations of the United States.

Citação norma Chicago

USA Department of State. "Foreign Relations of the United States: 1955/57,21 East Asian Security; Cambodia; Laos." Foreign Relations of the United States 1990.

Citação norma MLA

USA Department of State. "Foreign Relations of the United States: 1955/57,21 East Asian Security; Cambodia; Laos." Foreign Relations of the United States, 1990.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.